Signaling mechanism



C. E. BEACH.

SIGNALING MECHANISM.

APPLICATION FILED JUNE 18, 1917'.

Patented July 11, 1922.

: jnve -fam UNITED STATES PATENT OFFICE.'

CLARENCE E. BEACH, OF BINGHAMTON, NEW YORK, ASSIGNOR, BY MESNE ASSIGN- MENTS, TO THE GAMEVVELL FIRE ALARM TELEGRAPH COMPANY, A CORPORA- TION OF 1 TE\V- YORK.

SIGNALING MECHANISM.

Specification of Letters Patent.

Patented .iui ii, 1922.

Original application filed October 12;, 1914, Serial No. 866,322, Divided and this application filed June 18, 1917. 'Serial No. 175,309.

'1 0 all to 7mm 2'25 may concern Be it known that I, CLARENCE E. BEACH, a citizen of the United States, residing at Binghamtcn, in the county of Broome and State of New York, have invented certain new, and useful Improvements in Signaling ll Iechanism, of which the following isa specification.

This application is a division of my Patent No. 1,240,811, dated September 25, 1917.

This invention relates to signaling mechanisms adapted for use in a signaling sy tem and particularly to a municipal police signaling system in which provision is made for the transmission of both telephonic and telegraphic signals, and has specific reference to signaling mechanism which is adapted to be adjusted for the control of indeendent alarm devices upon the transmis sion of different classes of signals, without interfering with the simultaneous trans mission or telephonic or telegraphic signals.

The object of this invention is to provide a relay or signal controlling mechanism adapted to be so associated with the signaling circuit that upon the transmission of one class of signals over the circuit the relay will be adjusted for the control of one set of alarm mechanism and upon the transmission of another class of signals over the circuit the relay will be adjusted for the control of a separate set ofalarm mechanism.

The means whereby this object is attained is in the provision of a relay ofspeciiic construction so connected to the signal circuit that the direction oi current flow over the signal. circuit and a common return conductol, such as the ground, will adjust the relay for the control of thedesired alarm mechanism. 1

The alarm controlling relay mechanisms are of novel form, and each comprises two electromagnets, a terminal of one magnet being connected to one side of the circuit, and a terminal'ot the other magnet being connected to the other side of said circuit.

The remaining terminals of the magnets are connected to'a common return conductor, as for instance, to the ground.

rrn armature structure for these magnets so mounted in relation thereto that the energy 01; one of said magnets will be applied to the portion of said structure associated with the other of saidmagnets', during a portion of the movement of said armature, at a leverage which is substantially greater than the leverage at which the energy of such magnet will be applied to said portion during the remainder of the movement or said armature.

A contact arm is carried by the armature structure whereby circuit-connections may be established between either of two sets of contacts, and alarm mechanism is associated witheach relay, as for instance, a lamp controlled by one contact, and a bell controlled by the other contact.

For signaling systems employing so-called open circuit primary batteries, and in which it is therefore desirable that there shouldnot be a continuous current drain on such batteries, all of the features or" this invention may be employed by'providlng two normally disconnected common return conductors, as for instance, the ground, and a third wire, and connecting one of the magnetsof each alarm controlling relay between one side of the circuit and one of the common return conductors, as for instance, the third wire, and connecting the other magnet of such relay between the other side of the circuit, and the other common return con ductor, as for instance, the ground, keeping the two common return conductors normally disconnected from each other, and connecting the two common return conductors through a condenser, it necessaryto secure absence of noise in the telephone circuit, and providing facilities for directly connect ing such conductors by a switch whenever it is desired to cause the operation oi the alarm relays. I

For signalingsystems in which it is not necessary to maintain an electrical balance between the circuit conductors and the common return conductor, by connecting one magnet of each alarm relay between one circuit conductor and the common return conductor, and connecting the other magnetof each relay between the other circuit condu'ctor and the common return conductor, provision may be made for open circuit battery operation by employing a 'retra ctile spring, or a permanent magnet, in place of one of the electromagnets in the relay, and connecting the other magnet between one of the circuit conductors and the common return conductor, and arranging the relay so that2--when the armature is in completely retracted position both alarm mechanism circuits will be open; when in partially retracted position, one oi the alarm mechanism circuits will be closed; and when in fully attracted position the other 01 the alarm mechanism circuits will be closed,- and thus all other ieatures oi this invention may be employed.

Figure l is a plan View of a relay embodying the features of my invention.

Fig. 2 'is a sectional View oi" the relay oi Fin. 1, taken on the line 2*2.

Fig. 3 is a sectional View of the relay shown in Fig. 1., taken on the line 3 3.

Fig. -l is a modified "form of the relay shown in Fig. 1 adapted. for response to changes in current strength.

Fig. 5 is an elevation of a different iorm of relay mechanism embodying features of this invention.

Fig. 6 shows a typical form at circuit illustrating the use of the relays oi? 1, 2, and

Fig. 7 shows a typical. .iorm of circuit illustrating the use oi the relay of Fig. at.

Referring to Figures 1, 2 and 3, which show in detail the construction oi a relay embodying my invention it is seen that the relay magnets 71 and 72 are mounted on a suitable base. and have secured to their poles. a non-magnetic plate 81, through suitable openingshif which. the poles project.

The armature structure 82 is mounted upon. the plate 81 and has "he inclii'ied ends 83 and 84 so formed with relation to the magnets 71 and 72 that when the portion oi the armature between the bends adjacent to said inclined ends is resting; upon the plate 81, the end 83 will incline away from but extend across the poles of the magnet 71., and the end 84: will incline away from but extend across the poles of the magnet 72.

The locating pins 85. secured to the plate 8]., pass through suitable opening in the armature striu-ture 852, and are arranged to permit such movement oi said armature structure as will bring one or the other o t the inclined ends substantially parallel to and against the poles oil its associated magnet. hen the armature structure 82 moves, in response to the attraction of its end 83 toward the magnet 71, until said end is substantially parallel to and against the poles of said magnet, said. :urmature structure rocks on the bend adjacent to said end. 83, and hence during such morement said bend acts as a iulcrum ior said striurture, and when the end 8 L is moved substantially parallel to and against the poles oi the map;- net 72, the bend adjacent to said end S t acts as a fulcrum for said structure.

It will therefore be seen that two lulerums are so provided that this armature structure is adapted to rock upon either l'ulcriun, and that when so romlted ti 0 pull oi the. magnet upon one oi the inclined ends oi said structure will have a great advantage over the pull oi? the other magnet upon the other end oi said structure. It will further be seen that when neither magnet is energized, the armature structure will be held upon both iulcriuus by the force oi gravity, and that the magnets may thererore be energized and deenergizcd without tliStlll'lJlllQ said armature stri'wture, so long; as the pull oi one magnet does not (Xffflil the pull of the other magnet. by the dil iercnce in advantag which crisis when the armature st urture is resting upon but one fulcrum, and that whenever the pull oi? either ma'inet QXCQGUS said ditliereucc. such magnet will draw toward its poles the inclined end oi the armature structure associated therewith and more the other inclined end away from the poles oi the other magnet.

It will further be seen that whenever the pull off the two magnets becomes substznr tially equal, aiter the armature structure has been roclted upon one i'ulrrum as just described, the superior advantage oi the magnet which is a :t ng' upon the end o." the armature structure which is furthest iroiu its supporting iulrriuu, will cause the armature struc'uire to roclc upon said tulcruin to the position where it r sts upon both tulcrums, where its movement will be arrested through the substantially equal pull of the two magnets, as already explained.

It the relay is to be subjected to such shocks or movement as might cause the armature structure 82 to become illfitFliL'llfl'til from the pins 85, a guard 86 should be provided to keep such structure in engage ment with said pins.

The contact arm 87 is mounted upon. but insulated trom, the armature striu-ture (-12. and carries at its iree end the movable contact SS in such posititm that. when the end 83 is substantially paral el to and agaius the poles oi magnet 2 1. said bar PM will on-- nect the lined terminals 7'? and TH, and ihu when the end Siis in like relation to the magnet 72, said bar will connect the fixed terminals 79 and 80.

These parts therefore constitute a circuit controller and on account of governing the operative condition of separate alarm de vices be called alarm cmitrolling mechanism.

The relay of Figs. 1. 2, I, and 5 is zulrptml for use ii, various classes oi signaling and other circuits; at typical circuit arrangement for the utilization o't such rela -(s being shown by Fig. 6, in which a suitable current source A is associated with circuit-condition changing-Ineans conuirisin g the switch l3 whereby one terminal or the other o i such till lib]

l ill source may be connected with the ground. The circuit conductors 101v and 102 lead from respective terminals of the source A to mul tiple connections between said circuit conductors each serially including the magnets of the current paths which connect'the conductorlOl with the conductor 102; thence through the conduct0r 102 to the otherterminal of the source A. j j I Inasmuch as the magnets 71 and 82 of each of the respective relays will be traversed by the same current, the 'energization of both magnets of each relay will be substantially equal. 1 If, now, the switch B is raised to the one of its co-engagin contacts towhich an extensionof the con uctor 101. is connected, a current path will be' established through the ground which will short-circuit the magnets 71 of each of the relays, whereupon the armature of said relays will move in response to the pull of their respective associated magnets 72, and the contacts of'such relays will be suitably operated incident to such movement. If the switch B is moved downwardly into engagement with the contact to which an extension of the conductor 102 is connected, the magnets 72 of the rcspective relays will be short-circ'u'ited with corresponding results.

Referring to Fig. 4, it will be noted that the armature structure 82 there shown is mounted in a manner similarto that'shown in Figs. 1, 2 and 3, and that the electromagnet 72 is mounted in suitable relation to the inclined end 84: of said structure, while means is provided, for moving said end 84 away from said' magnet 72, con sisting of a spring 92 applied to the in clined end 83 of saidarmature structure.

A. movable contact 88:is carried by the contact arm 87, moving with the armature structure 82, and the fixed contacts 79 and 80 are so mounted in the path of said'movable contact 88 that when the inclined. end

84; of armature structure82"ismoved substantially parallel to and against the poles of electromagnet 72", said contacts 79' and 80 will be connected by the contact 88.

The fixed contacts 77" and 7 8' are so mounted, inthe path ofthe movable contact 88', that when the armature structure 82 'is resting upon both of its fulcrums, said con tacts 77 and 78 will be connected by'the contact 88, but when said armature structure 82 is in the position where either of its inclined ends are substantially parallel to the plate 81, saidcontact 88 will not connect said contacts 77 and78, 1 The strength of the spring 92 is such when the plate 81,and so that when said mag- Owing to the fact that the pull of the the magnet 7 2 is de-energized the armature structure will rock upon the fulcrum adjacent to its inclined end 88 until said end is moved substantially parallel to and against net 72 is suitably energizechthe pull of said magnet 72 upon the inclined end 8 1 of said structure 82 will cause said structure to first rock upon the; fulcrum adj acent' to its inclined. end 83 until it rests upon both.

toand against the poles of said magnet 7 2.

magnet 72 operates at much greater advantage, against spring 92, when the armature structure"82 is rocking upon the "ful crum adjacent to its end 83', than when said structure is rocking upon the fulcrum adja- "cent to its end 84:, it is evident that amuch weaker current flow through the magnet 7 2 will movesaid armature structure, from the position where its end 88 is substantially parallel to and againstthe plate 81, to the position where said structure rests upon both. I of its fulcrums, than the current required to move said armature structure, from the position where it rests upon both of its fulcrums, to the position where its inclined end 84 is substantially parallel to and against thepoles of the magnet 7 2. V

From the foregoing itwill be seen that the relay of Fig. 1 is particularly suited for utilization where it is desired that respective conditionings of responsive mechanism shall not be altered because of changes in energizing current strength within certain clearly defined rangesybut shall be altered whenever such current varies from a strength within one to astrength within another of such ranges. I

Atypical circuit arrangement for utiliz-- ingthis form of relayis shown by Fig. 7,

in which. a suitable current source A is as sociatcd with circuit condition changing means comprising the switch B whereby either one terminal'or' an intermediate potential tap from said one source may be connected to the ground. The circuit conductors 101 and 102 lead from respective terminals of the source A, and connections which will be subjected toless than all of 130 fulcrums, and to thereafter rock upon the fulcrum adjacent to its inclined end 84: until such inclined end is substantially parallel the electromo'tire il'orce of said source. Due to the resultant current flow through. each of the magnets 72" the structures 82 of such relays will thereupon rock upon the it'ulcrums nearest the ends 83 thereof until said structure rests upon both 'lulcrnms; whereupon the pullot the magnet 72 will be insuflicient to continue the movement oi .said structure, as the spring '2 will thereafter be acting at a much greater advantage than during the preceding movement o't said structure. If the switch B is moved downwardly int-o engagement with the contact to which an extension. of the conductor 102 is connected, the magnets '72 ot the respective relays will be sntliciently energized to cause the structure 82 to rock around the :tulcrum adjacent to its inclined end S-l until the contact 88 is brought into engagement with the contact;

Fig. 5 shows a form of relay so embodying certain features of this invention, that said relay may be used in. the place of the relay shown in l i 's. 1, 2, and. 3. Or by substituting a sprn (such as the s iniing 92 shown in l ig'. %t) or a permanent magnet for one oil. the electromagnets shown in Fig. 5, the relay shown .in said figure may be used in place of the relay shown on Fig. 4:.

In constructing the relay shown in Fig. 5, electromagnets 71 and 72 are suitably mounted, and an armature structure is provided therefor, consisting of the inclined. ends 83 and 84, pivoted. at 203 and 20 i, and carrying the armatures 201 and 5202, respectively.

The springs 205 and 206 are connected to the inclined ends 83 and 84 respectively, in such manner as to tend to move said ends toward the magnets 71 and 72'.

The strut plate 81 passes between the inclined ends 88 and 84, and is provided. with the locating pins extending through suitable openings in the inclined ends 83 and 84-.

As the transmission o'l. motion, from the inclined, end 83 to the inclined end S-t, through the plate 81" is similar to the corre- =p .)nding transmission. between inclined. end 8? and inclined end 8-} in Figs. 1., 2 and 3, the points of engagement between the inclined ends 83 and 8 1 and the plate Si are, for want of a better term, herein called fulcrums.

The tulcrums are so positioned as to hold the inclined ends 83 and Set a suitable distance trom their cooperating magnets.

hen the armature structure moves, in response to the attraction of the inclined ends 84;, toward the magnet 72 until the armature 202 is substantially parallel to and against the poles of said magnet, said inclined end 8ft. rocks on the corner of the plate 81" adjacent to the free end of said inclined end 84k, and the inclined end adjacent to the pivoted end 0.: r l l V li l end 83, and hence during said nunrnrnt said corners act as a l'ulcrusn tor said structure, and when. the armature structure moved, in response to the attraction ol the inclined end. 83, toward the ma net Tl until the armature 201 is substantially p r allel to and against the poles of said magnet, the corner of the plate Si ailjarcnt to the free end of said inclined end 83, and the corner of said plate 81. adjacent to the pivoted end oi. the end 84;. act as a :tulcrum tor said structure.

It will there-tore be seen that two tulcrums are so provided that this armature strimture is adapted to rock upon either tulcruni, and that when so rocked the pull oi. a magnet up on one of the inclined ends of said structure will have a great advantage over the pull oil the other magnet upon. the "ther end ot said structure. It will turiher be seen that when neither magnet is encrgizmgl, the armzn ture structure will be held upon both 'l'id crums by the action ot the springs 20:) and 206, and that the magnets, may there torrhe energized and de-energized without d turbingsaid armature structure, so long as the pull of one magnet does not exceed the pull ot' the other magnet iy the diiicreuce in ad vantage which exists when the armature structure is resting upon but one lull-rum. and that whenever the pull of either magnet exceeds said ditterence, such nragi'iet will draw toward its poles the end of the structure associated therewith and move the other end away from the poles of the other magnet.

It will further be seen that whenever the pull of the two magnets becomes substantially equal, after the armature structure has been rocked upon one fulcrum, as just described, the superior advantage of the mag net which is acting upon the end whose supporting 'lulcruin is nearest to its pivot. will cause said armature structure to rocl: upon said fulcrum. to the position. where both 'l'ul cru'ms become ell'ective', where the movcnu nt oi said striuJture will be arrested through the substantially equal pull ol both magnets and both springs as already ex 'ilaincd.

Having now fully described this invention.

what I claim and desire to secure by Letters Patent ot the United States is:

I. In a signaling mecliiauism, an electromagnet, an armature structure there'tor movable into a plurality ot different positions, and su1 porti11g mains for said armature structiu'e arranged to provide a plurality of predetermined definite leverages between said armature structure and. electroanzuznet corres mnding to pl'tltlBtUlH-lllltltl positions assumed by said armature structure.

2. In a. signaling mechanism, two electromagnets, a armatiu'e structure fmsaid magnets, two :tulcrums about either of which said structure may rock, a contact arm moving with said structure, a connecting bar carried at the free end oi": said contact arm, and fired contacts in the path of said connecting bar.

3. In a signaling mechanism, two electromagnets, an armature structure for said magnets, two fulcrums about either of which said structure may rock, and suitable means for maintaining saidstructure in proper relation to said magnets and to said fulcrums. 4t. In a signaling mechanism, two electromagnets, an armature structure for said magnets, two tulcrums upon which said structure is mounted, said structure arranged to rock upon either fulcrum, and locating pins mounted in suitahlerelation to each fulcrum for maintaining the armature structure in proper relation thereto.

5. In a signaling mechanism, two electro-.

magnets, an armature structure for said magnets, two tulcrums upon which said structure is mounted, said structure arranged to rock upon either fulcrum, locating pins mounted in suitable relation to each fulcrum for maintaining the armature structure in proper relation thereto, and a guard for preventing disengagement of the armature structure from said pins.

6. In a signaling mechanism, an armature structuremovable into a plurality of different positions, a mounting means therefor, two governing means for said structure arranged to move it in opposite directions, said mounting means arranged to provide a plurality of different definite leverages between said armature structure and governing means corresponding to predetermined positions assumed by said structure.

7. A relay structure comprising an armature, two tulcrums on either of which said armature may rock, and means including an electromagne t adapted to rock it about either of said fulcrums.

8. A relay structure having an armature, two spaced fulcrums on either of which said armatures may rock and both arrangedto support said armature in a stable predetermined position, and means including an electro-m'agnet adapted to rock said armature about either of said fulcrums.

' G. E. BEACH. 

